diff options
Diffstat (limited to 'DOCS')
| -rw-r--r-- | DOCS/man/en/options.rst | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/DOCS/man/en/options.rst b/DOCS/man/en/options.rst index cc55c3a40e..5faf3cdb7e 100644 --- a/DOCS/man/en/options.rst +++ b/DOCS/man/en/options.rst @@ -1173,6 +1173,29 @@ :fps=<value>: output fps (default: 25) :type=<value>: input file type (available: jpeg, png, tga, sgi) +--mkv-subtitle-preroll + Try harder to show embedded soft subtitles when seeking somewhere. Normally, + it can happen that the subtitle at the seek target is not shown due to how + some container file formats are designed. The subtitles appear only if + seeking before or exactly to the position a subtitle first appears. To + make this worse, subtitles are often timed to appear a very small amount + before the associated video frame, so that seeking to the video frame + typically does not demux the subtitle at that position. + + Enabling this option makes the demuxer start reading data a bit before the + seek target, so that subtitles appear correctly. Note that this makes + seeking slower, and is not guaranteed to always work. It only works if the + subtitle is close enough to the seek target. + + Works with the internal Matroska demuxer only. Always enabled for absolute + and hr-seeks, and this option changes behavior with relative or imprecise + seeks only. + + See also ``--hr-seek-demuxer-offset`` option. This option can achieve a + similar effect, but only if hr-seek is active. It works with any demuxer, + but makes seeking much slower, as it has to decode audio and video data, + instead of just skipping over it. + --mixer=<device> Use a mixer device different from the default ``/dev/mixer``. For ALSA this is the mixer name. |